Algae identification and correction - The Planted Tank Forum
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post #1 of 6 (permalink) Old 04-03-2013, 09:06 PM Thread Starter
Algae Grower
Join Date: Feb 2013
Location: Fredericton, NB, Canada
Posts: 46
Algae identification and correction

Hey all,

I finally got my 45 gallon tank up and running but I seem to be battling problem after problem. The latest is an outbreak in algae where I mostly know what the cause was and I'm looking for some info on what kind of algae I have and how to combat it.

I left my tank setup and running over the weekend while I was away at my parents. I came back to realize I had the timer for the lights on the wrong setting so they were on 24/7 and also my co2 wasn't actually on as it needed some fiddling and time to actually start dosing out co2.

I'm now down to 6 hours of light 10-12pm and 6-10pm and am trying to get my co2 at the level I want. I've been overdosed on co2 since Monday night when the co2 finally started getting into the tank.

Below are the pics of the tank, any advice would be greatly appreciated.

Brown (clear maybe?) algae growing on the substrate (fluval stratum)
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Closeup on the HC
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Algae floating after vacuuming most of the substrate to try to get rid of the algae.
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Green algae starting on the HC
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post #2 of 6 (permalink) Old 04-03-2013, 09:50 PM
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Join Date: Feb 2013
Location: Queens, New York
Posts: 854
I had the same problem too except mine was smaller. I just used an algae sponge on the glass and vaccumed the rest away. I set a blackout for a day or 2 and turned off all co2
now I have little to no algae left
hope this helps
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post #3 of 6 (permalink) Old 04-03-2013, 10:16 PM
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Join Date: Dec 2010
Location: Arlington, texas
Posts: 311
Algae identification and correction

That looks like diatoms. How many months does the tank running. For diatoms Amanos will eat it also Ottos. Only put fish when you know tank is cycled. Need more plants, your substrate needs to be fully covered. What type of substrate is it? amazonia? Any type of soil will leach silicates/phosphates in the beginning that feed the diatoms. Need to put some seachem phosguard. Also do water change every 2-3 days till everything is controlled.
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post #4 of 6 (permalink) Old 04-04-2013, 12:25 AM Thread Starter
Algae Grower
Join Date: Feb 2013
Location: Fredericton, NB, Canada
Posts: 46
Substrate = Fluval Stratum

Tank has been running for just under a week.

As far as more plants I will be getting the rest I will be planting on Friday. The back and side will be all plants with some wood in the middle if I can ever get it to sink.

Looks like water changes and cycling for me. Glad to know nothing more is needed.
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post #5 of 6 (permalink) Old 04-04-2013, 08:11 PM
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Join Date: May 2008
Location: Phoenix/Flagstaff, AZ
Posts: 6,758
Algae identification and correction

Rhizoclonium. It's a tough algae to get rid of IME. Decrease light, increase flow, and manually remove as much as you can. Black mollies will sometimes eat it, and I've heard that true SAE's do as well.

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post #6 of 6 (permalink) Old 04-04-2013, 08:21 PM
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Join Date: Jan 2013
Location: Minnesota
Posts: 960
I just tackled my rhizo. It did not look anything like that. I read that it is caused by low nutrients and low co2. Now I dose macros and micros and it is gone. Good luck!
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